Heel-slotting machine



Nov. 12, 1940. H. w. Russ HEEL-SLOTTING MACHINE Sheets-Sheet 1 Filed May 11, 1939 Nov. 12, 1940. Russ 2,220,915

HEEL- SLO'ITING MACHINE Filed May II, 1939 2 Sheets-Sheet 2 Patented Nov. 12, 1940 UNITED STATES 1 PATENT OFFlCE' HEEL-SLOTTlNG MACHINE Harley W. Russ, Haverhill, Mass, assignor to United Shoe Machinery Corporation, Borough of Flemington. N. .L, a corporation of New .Jersey Application May 11, 1939, Serial No. 273,041 7 3 Claims.

Patent No. 2,121,172,- granted June 21, 1938, on

an application filed in the name of Fred C. Love- It is an object of this invention to provide a machine for quickly and effectively forming in the breast of an interlocking heel cover-receiving slots which extend heightwise of and are parallel to corresponding breast edges of the heel. The various features of the invention will be 15. understood and appreciated from the following detailed description read in connection with the accompanying drawings, in which Fig. 1 is a plan View, partly broken away, of the illustrative machine; i

Fig. 2 is a perspective View, partly broken away, of the machine in the process of slotting a heel;

Fig. 3 shows in perspective the .portion of the machine illustrated in Fig. 2 as viewed from below;

Hg. l is a section on line IV.IV of Fig. 1;

Fig. 5 shows a portion of the machine as viewed in the direction of the arrow V (Fig. 1); and

Fig. 6 is a perspective view of a heel which has been slotted by the illustrative machine.

The illustrative machine is described with reference to forming in the breasts of interlocking heels 2!) (Figs. 1, 2 and 6) cover-receiving slots 22 (Figs. 2 and 6) which are parallel to corresponding breast edges 24 (Fig. 6) of the heels.

The interlocking heel 2!) is placed breast down upon a carrier slide 28 (Figs. 1 and 2), one margin of the breast of the heel engaging a ledge or support 28 (Figs. 1, 2 and 4) and an adja cent side of the heel engaging a curved side gage 36. The carrier slide 26 upon which the heel is mounted is then moved along a guideway 32 (Fig. 2) in a direction 34 (Fig. l.) by the operator who simultaneously therewith forces the margin of the breast of the heel against the ledge 28 and the side ofthe heel against the gage 30 to insure that the slot 22 formed in the breast by a saw 538, which extends through and above the ledge '28, shall be parallel to the-adjacent breast edge 24 of the heel.

5 The various shoe-guiding instrumentalities are mounted upon a platformtil having at its under side a yoke 42 (Fig. 3) into which are threaded trunnion screws 44, 45, respectively. The end portions of the trunnion screws 44, 45 fit re- 55 spectively in recesses in the opposite ends of a bar 43 secured by screws to a bracket 52 extending forwardly from a pedestal 54 (Fig.1). A housing5l is secured to the pedestal 54 by screws 53. The trunnion screw 46 is held in its adjusted position in the yoke 42 by a lock nut 55. Secured by screws 56 to the platform 40 is a block 58 into which are threaded screws til carrying lock nuts 52. The block 58 has pivoted to it a screw 64 which extends through an opening'in a bracket 58 of the pedestal 54 and carries a knurled hand nut 10.

In order to vary the distance the saw 38 projects abovethe ledge 28, in accordance with the desired depth of the cover-receiving slot 22 to be formed in the heel, the platform 49 may be initially raised or lowered into different operative positions about the common axis of thetrunnion screws 44, 46. Suchadjustment is readily effected'by backing the hand nut H! away from the'bracket 58, releasing lock nuts and 62, and then turning the screws 60 the lower ends of which normally engage the bracket 68. After the platform 40 has been properly adjusted the lock nuts 55, 62 are turned to' bind the screws 44, 46 to the yoke 42, and the hand nut'lll is turned upon the screw 54 until'it isforced against the lower face of the bracket 68.

v Mounted upon the pedestal 54 (Fig. 1) and located in the housing 5| is a bearing 12 for a rotarydrive shaft '54 to the forward endof which the circular saw 38 is secured by a screw 16. Secured to the platform 40 by screws 78 (Fig. 3) (only one shown) is a block'80 (Figs. 2 and 4) provided with a pair of recesses 82 (Figs. 1 and i 4-) in which fit studs 84 (Fig. 4) having flanges 86 and eccentric heads 88. The flanges extend slightly above the top of the block80 and fit in recesses 90 of the ledge 28.

r The ledge 23 and the side gage 3B are normally forced downward by a clamp 94 (Figs. 1 and 2) the upper end of whichis secured to the housing 5! by a head 95 (Fig. l) of a screw 98 threaded into the housing, and the lower fcr- Ward end of which is forced against the side gage 30. The side gage 30 base. beveled face lllil terminating in a curved edge E02 (Fig. 1) which engagesthe flat heel-engagingface I 03 (Fig. 4) of the ledge 28 and is engaged by the side of the heel at its adjacent breast edge. The beveled face I00 of the side gage 30 maybe described as forming an obtuse dihedral angle N34 with the heel-engaging face I03 of the ledge 28.

The side gage 38 may be readily replaced by anyone of a plurality of side gages 30 having edges I02 of different curvatures, in accordance with the heightwise curvatures of the sides of the heels to be operated upon. The side gage 30 may be initially adjusted to vary the distance between the edge I02 of the gage and the saw 38 by turning the eccentric studs 94 about their respective axes, after which the studs are secured-in their adjusted positions in the block 60 by set screws I06.

Secured by screws I08 to the platform 40 is another block I I which, together with the block 80', forms the arcuate guideway 32 along which the slide 26 travels. The slide 26 is normally urged in a counterclockwise direction as viewed in Fig. 1 by a spring II2 one end of which is attached to the slide and the other end of which is attached to an arm II4 secured to the platform 40.

The slide 26 has a recess or slot II6 which is shaped and arranged to receive the projecting lip H8 (Figs. 2 and 6) ofthe interlocking heel 20 and is utilized when the left heel-cover-receiving slot 22 on the heel 20 (as viewed in Fig. is being formed. The operator places the heel 20 breast down against the upper face I20 of the carrier slide 26 with the attaching side of its lip H8 in engagement with the vertical surface I22 of the recess H6 and the left breast edge 24 of the heel in engagement with the edge I02 of the side gage 30, as illustrated in Fig. 2. The adjacent margin of the breast 36 of the heel is supported by the ledge 28 which, together with the slide 26, orients the breast of the heel properly with respect to the saw 36 as the heel,

,the breast of which is constantly held against the edge I02 of the side gage by the operator, is moved, together with the slide 26, past the saw 38 to form the left heel-cover-receiving slot 22 (Fig. 6).

The. heel is then removed from the machine and the carrier 26 is moved back to its starting position shown in Fig. 1 by the spring I [2. The operator then places the heel breast down upon the face I20 of the slide 26 with the lower face of its lip in engagement with the rear face 526 (Fig. 1) of the slide and with the right breast edge 24 of the heel in engagement with the edge I02 of the side gage 30, as illustrated in dotted lines (Fig. 1). The carrier slide 26 is then moved in a clockwise direction, as viewed in Fig, 1, by the operator, who constantly forces the side of the heel against the edge I02 of the gage 30 and moves the slide 26, together with the heel, past the saw 36 to form the cover-receiving slot 22 at the right side of the heel breast (Fig. 6).

By providingthe slide 26, in combination with the ledge 28 and the side gage 30, the operator can quickly form in the breast of the heel the heelcover-receiving slots 22 which are parallel to the corresponding breast edges of the heel and extend depthwise in a direction approximately parallel to the heightwise median plane I26 (Fig. 6) of the heel.

Having described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. A slotting machine having, in combination, a ledge having an approximately fiat face, a gage having a beveled face terminating in a curved edge which is arranged above said face of the ledge and is engaged by the breast edge portion of a side of an interlocking heel the adjacent margin of the breast of which is in engagement with said face of theledge, a circular saw extending through and above said face of the ledge and positioned adjacent to the curved edge of the gage, a carrier slide having a face construct ed andarranged to cooperate with the ledge in supporting the heel and. having a recess constructed and arranged to receive a forwardly projecting lip of said heel, and a guideway for controlling movement of 'the slide in a curved path extending generally lengthwise of said edge of the gage to facilitate transferring the entire heel one of the breast edges of which is in engagement with said edge past the saw to form in the margin of the breast of the heel a coverreceiving slot which is approximately parallel to said one breast edge of the heel and extends from one end of the heel to the other.

2. A slotting machine having, in combination, a ledge constructed and arranged to be engaged by a portion of the breast of an interlocking heel adjacent to a breast edge of the heel, a gage having a curved edge arranged above said ledge and constructed and arranged to be engaged by a side of the heel adjacent to said breast edge, a circular saw extending above the ledge and positioned adjacent to but spaced from the gage, a carrier slide having a recess one side of which is constructed and arranged to be engaged by a forwardly projecting lip of the heel and having a face which is constructed and arranged to be engaged by the breast of the heel and to cooperate with said ledge and said edge of the gage to position the heel, and means for guiding the slide in a curved path which extends lengthwise of the curved edge of the gage to transfer the entire heel which is in engagement with said edge of the gage past the saw to form in the breast of the heel a heel-cover-receiving slot approximately parallel to an adjacent breast edge of the heel.

3. A slotting machine having, in combination, a ledge having a fiat face, a gage having a beveled face forming an obtuse angle with the flat face of said ledge and having a curved edge arranged to be engaged by the breast edge of an interlocking heel the adjacent lateral margin of the breast of which is in engagement with the ledge, a circular saw extending above the flat heel-engaging face of the ledge, a carrier slide having angularly disposed faces constructed and arranged to be engaged by the breast of the interlocking heel and the forwardly projecting lip of the heel respectively, means for guiding the carrier slide in a curved path to facilitate the transferring of the heel which is mounted upon the slide and has said breast edge in engagement with the arcuate edge of the gage past the saw to form in the breast of the heel a coverreceiving slot which is parallel to said breast edge of the heel, eccentric studs for initially adjusting the gage with relation to the saw and the guideway, and means for initially adjusting the ledge, the gage and the guiding means for the carrier slide with relation to the saw to vary the extension of the saw above said face of the ledge.

HARLEY W. RUSS. 

